Vacuum tube speaker



FIG. 1 is a perspective view of a vacuum tube speaker showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is an exploded perspective view thereof.

The broken lines shown in the drawings depict portions of the vacuum tube speaker that form no part of the claimed design. The lines shown inside the small circles in FIG. 3 depict portions of the vacuum tube speaker that form no part of the claimed design. 

CLAIM The ornamental design for a vacuum tube speaker, as shown and described. 